RC Series Helical Gear Units (B5 Mounting): Rigid Base-Mounted Horizontal Transmission Solution
I. Product Overview
Weigao RC Series Helical Gear Units with B5 base mounting are high-performance standardized transmission devices specialized in stable horizontal power transmission. As a core product of Weigao's industrial transmission series, this unit is designed to address the pain points of insufficient mounting rigidity, poor horizontal transmission stability, and difficult load-bearing dispersion in general industrial scenarios. Compliant with international gear transmission standards and certified by ISO 9001 quality management system and IP55 protection level, it integrates precision parallel shaft helical gear transmission structure, high-rigidity integral cast iron housing, and standardized B5 base mounting interface. The product features strong mounting rigidity, stable transmission, high load-bearing capacity, and wide adaptability, capable of stably operating in temperature ranges from -10℃ to +40℃. It is widely applied in belt conveyors, mixers, fans, pumps, and general machine tool auxiliary systems, providing efficient and reliable power transmission support for global general industrial production lines.
II. Core Advantages
1. Precision Parallel Shaft Helical Gear Transmission, Stable & High Efficiency
Adopting one-stage or two-stage precision parallel shaft helical gear transmission design, the gear unit achieves stable horizontal power transmission with actual transmission ratios of 1.1:1 to 30:1 for flexible selection. Gears are made of high-quality 20CrMnTi alloy steel, processed by carburizing and quenching, and precision grinding, with tooth surface hardness reaching HRC 58-62 and roughness ≤Ra 0.8μm. The optimized tooth profile and drum-shaped tooth design ensure a meshing contact area of over 95%, effectively reducing transmission impact and noise. The no-load operating noise is ≤65dB at 1m distance, and the transmission efficiency is as high as 94%-96%, realizing energy-saving and quiet operation for general industrial equipment. The parallel shaft structure ensures uniform force distribution of the shaft system, enabling stable operation under continuous rated load conditions.
2. Standard B5 Base Mounting, Rigid & Reliable Load-Bearing
The unit adopts standardized B5 base mounting design, with the base interface complying with IEC international standards. The integral cast iron base has a reinforced rib structure, which can firmly fix the reducer on the equipment frame or concrete foundation, effectively dispersing the transmission load to the mounting surface and avoiding deformation caused by uneven stress. Compared with flange-mounted models, the B5 base mounting improves the overall mounting rigidity by 40%, ensuring stable operation even under slight vibration conditions. The base is designed with precision positioning holes, which facilitates quick alignment during installation and reduces the difficulty of coaxiality adjustment. The horizontal layout of the base mounting is especially suitable for long-distance horizontal transmission equipment, ensuring consistent transmission accuracy and extending the service life of the entire transmission system.
3. High-Rigidity Cast Iron Housing, Reliable & Durable
The housing and base are integrally cast with high-quality HT250 cast iron, formed by one-time casting and precision machining, ensuring excellent structural rigidity and impact resistance. Key stress-bearing parts such as the base and bearing seats are optimized through finite element simulation, effectively dispersing transmission loads and avoiding housing or base deformation under rated working conditions. The surface is treated with anti-rust and anti-corrosion painting, which can adapt to general industrial environments such as dust and moderate humidity. Equipped with high-precision cylindrical roller bearings and deep groove ball bearings, the shaft system operates stably with a service life of more than 20,000 hours under normal working conditions, ensuring long-term reliable operation of the transmission system.
4. Integrated Lubrication System, Convenient Maintenance
The gear unit adopts integrated oil bath lubrication design, with factory-filled special extreme pressure gear oil, enabling immediate use after installation. The housing is equipped with a transparent oil level observation window, a centralized oil filling port, and a quick-opening oil drain port, facilitating daily lubrication inspection and oil change operations. The lubrication system is optimized for long-term operation, with a recommended oil change cycle of 4000 hours under normal working conditions, greatly reducing maintenance frequency and downtime cost. Sealing parts adopt high-temperature and wear-resistant oil seals, effectively preventing oil leakage and ensuring clean operation environment.
III. Typical Application Fields
- Conveying Equipment: Belt conveyor main transmissions, roller conveyor driving mechanisms
- Mixing & Agitating Industry: Small and medium-sized mixer drives, agitator transmission systems
- General Machinery: Fan drives, water pump transmission mechanisms, air compressor auxiliary transmissions
- Machine Tool Industry: Ordinary machine tool main transmission auxiliary systems, cutting tool feeding mechanisms
- Light Industry Production: Packaging line horizontal conveying drives, printing machine auxiliary transmission systems
IV. Key Technical Parameters
| Model Specification | RC2, RC4, RC6, RC7, RC8, RC10, RC12, RC18, RC20, RC25 |
| Power Range | 0.12kW - 45kW |
| Transmission Ratio | 1:1, 1.5:1, 2:1, 2.5:1, 3:1 (actual ratio) |
| Operating Noise | ≤65dB (1m distance, no-load) |
| Operating Temperature | -10℃ - +40℃ |
| Mounting Type | Mounting Type
B5 base mounting (compatible with IEC standard) |
V. Installation & Maintenance
Adopt B14 flange standardized installation, ensure the flatness of the mounting surface ≤0.02mm/m to avoid additional stress on the shaft system. During installation, check the coaxiality between the input/output shaft and the connected equipment to ensure smooth transmission. Select appropriate lubricating oil according to the working environment: use 220# extreme pressure industrial gear oil for normal temperature conditions. Regularly check the oil level through the observation window, and replace the lubricating oil every 4000 hours of operation or once a year. Keep the surface of the housing clean to facilitate heat dissipation. Stop the machine immediately for inspection if abnormal noise, oil leakage, or excessive temperature rise occurs during operation.
Adopt B5 base standardized installation, ensure the flatness of the mounting surface ≤0.02mm/m and the levelness ≤0.03mm/m to avoid additional stress on the shaft system. During installation, use high-strength bolts with anti-loosening washers to fix the base firmly on the foundation, and check the coaxiality between the input/output shaft and the connected equipment to ensure smooth transmission. Select appropriate lubricating oil according to the working environment: use 220# extreme pressure industrial gear oil for normal temperature conditions. Regularly check the oil level through the observation window, and replace the lubricating oil every 4000 hours of operation or once a year. Keep the surface of the housing and base clean to facilitate heat dissipation. Stop the machine immediately for inspection if abnormal noise, oil leakage, or excessive temperature rise occurs during operation.
Weigao RC Series Helical Gear Units (B14 Mounting) adhere to the design philosophy of "modularization, high precision, and easy adaptation", focusing on the core needs of general industrial right-angle transmission. With its advantages of compact structure, stable transmission, and flexible installation, it breaks through the limitations of traditional right-angle reducers in installation layout and operation stability. The product provides efficient and reliable transmission solutions for textile, food, machine tool, and other industries, supported by complete standardized models and professional after-sales services. Compliant with international standards and industrial specifications, it is committed to becoming a trusted partner in the global general industrial transmission field.
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